package com.lijj.oss.service.impl;

import com.aliyun.oss.OSS;
import com.aliyun.oss.OSSClientBuilder;
import com.lijj.oss.service.OssService;
import com.lijj.oss.utils.ConstantPropertiesUtils;
import org.joda.time.DateTime;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;

import java.io.IOException;
import java.io.InputStream;
import java.util.UUID;

@Service
public class OssServiceImpl implements OssService {

    //上传头像文件到OSS
    @Override
    public String uploadFileAvatar(MultipartFile file) {
        // 工具类获取值
        String endpoint = ConstantPropertiesUtils.END_POINT;
        String accessKeyId = ConstantPropertiesUtils.KEY_ID;
        String accessKeySecret = ConstantPropertiesUtils.KEY_SECRET;
        String bucketName = ConstantPropertiesUtils.BUCKET_NAME;

        try {
            // 创建OSSClient实例。
            OSS ossClient = new OSSClientBuilder().build(endpoint, accessKeyId, accessKeySecret);

            // 获取上传文件流。
            InputStream inputStream = file.getInputStream();

            //获取文件名称
            String fileName = file.getOriginalFilename();

            //1.在文件名称里面添加随机唯一的值
            String uuid = UUID.randomUUID().toString().replaceAll("-","");
            fileName = uuid + fileName;

            //2.把文件按照日期进行分类
           String datePath = new DateTime().toString("yyyy/MM/dd");

           fileName = datePath + "/" + fileName;
            //调用oss方法实现上传
            //第一个参数 Bucket名称
            //第二个参数 上传到oss文件路径和文件名称 /aa/bb/1.jpg
            ossClient.putObject(bucketName, fileName, inputStream);

            // 关闭OSSClient。
            ossClient.shutdown();

            // 把上传之后文件路径返回
            // 需要把上传阿里云oss路径手动拼接出来
            String url = "https://" + bucketName +"." + endpoint + "/" + fileName;
            System.out.println(url);
            return url;
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }
}
